[Users] initial data for gauge wave test from apples with apples paper

[Jonah Miller]

Roland,

EinsteinExact does contain both Gauge Wave shifted gauge wave initial 
data. They're provided as additional thorns. Here's the relevant part of 
my thorn list:

!TARGET   = $ARR
!TYPE     = git
!URL      = https://github.com/barrywardell/EinsteinExact.git
!REPO_PATH= $2
!CHECKOUT = EinsteinExact/doc EinsteinExact/m EinsteinExact/tests
EinsteinExact/EinsteinExact_Test
EinsteinExact/GaugeWave
EinsteinExact/KerrSchild
EinsteinExact/Minkowski
EinsteinExact/ModifiedSchwarzschildBL
EinsteinExact/ShiftedGaugeWave
EinsteinExact/Vaidya2

Here's the parameter file I used to run it (in compliance with apples 
with apples) for my DG paper (arXiv:1604.00075):

https://bitbucket.org/Yurlungur/oldg-supplemental/src/12834adfa6ce4b0660ca98f242f112f320e3582c/par/gauge_wave.rpar?at=master&fileviewer=file-view-default

I was using my implementation Mclachlan, but you should be able to adapt 
the relevant parameters.

Best,

Jonah

On 17-07-20 02:13 PM, Roland Haas wrote:
> Hello all,
>
> I am trying to set up the gauge wave test from the apples with apples
> paper https://arxiv.org/abs/0709.3559 "Appendix A.3. Gauge wave
> testbed". While these are simple enough the coding up the ADM variables is not a big deal, I would still ideally avoid this potential source of error and use a code that is already in the ET or Cactus.
>
> Does anyone know if such a thorn exists in the ET (and would point me
> to it)? EinsteinExact does not seem to contain such a module (but only
> the shifted gauge test).
>
> Yours,
> Roland
>
>
>
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